Fire Protection · F-VFNZK

Inspector Test Drain Detail

Materials

Elements

Ceilings Insulation Drainage Connections / Plates

About this detail

A fire protection inspector test drain and drum drip connection passes through an exterior wall with building insulation. The assembly incorporates a typical full port lockable ball or gate valve with a plugged outlet, a sight glass, a union and plug, and forty-five degree brass elbows. All piping and fittings exposed to the exterior elements are specified as brass. A brass escutcheon covers the wall penetration, terminating in a bushing with a smooth outlet equal to the sprinkler orifice. The maximum height above finished floor is six feet zero inches, and computer room preaction room test connections require an additional accessible valve above the ceiling at the exit of the room before tying into the main drain per NFPA 13.

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